JPS6472286A - Image analyzing device - Google Patents
Image analyzing deviceInfo
- Publication number
- JPS6472286A JPS6472286A JP62228421A JP22842187A JPS6472286A JP S6472286 A JPS6472286 A JP S6472286A JP 62228421 A JP62228421 A JP 62228421A JP 22842187 A JP22842187 A JP 22842187A JP S6472286 A JPS6472286 A JP S6472286A
- Authority
- JP
- Japan
- Prior art keywords
- image
- signal
- dimensional
- moving
- recorded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Image Analysis (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
PURPOSE:To analyze images at a high speed by reorganizing a 2-dimensional difference image from the image signals of two continuous frames of moving image signals expressed in time series signals to record said difference image without performing time series processing and processing directly the recorded 2-dimensional difference optical signal by means of a light beam. CONSTITUTION:A difference image signal 7 is recorded 2-dimensionally in a space/light modulator 4 and the read light is projected on the modulator 4. Thus the time series signal 7 recorded in the modulator 4 is converted into a 2-dimensional difference optical image signal 12 and extracted. Furthermore, the signal 12 undergoes 2-dimensional photoelectric conversion via a 2-dimensional optical position detector 24 for detection of the centroid coordinates of a difference image. These series of actions are carried out continuously to obtain the moving direction, the moving vector, the moving speed, the motion vector, etc., of the moving image. As a result, the images are analyzed easily and at a high speed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62228421A JPH0624030B2 (en) | 1987-09-14 | 1987-09-14 | Image analysis device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62228421A JPH0624030B2 (en) | 1987-09-14 | 1987-09-14 | Image analysis device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6472286A true JPS6472286A (en) | 1989-03-17 |
JPH0624030B2 JPH0624030B2 (en) | 1994-03-30 |
Family
ID=16876210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62228421A Expired - Lifetime JPH0624030B2 (en) | 1987-09-14 | 1987-09-14 | Image analysis device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0624030B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03175364A (en) * | 1989-12-02 | 1991-07-30 | Ezel Inc | Measuring apparatus for flow velocity |
JP2003141513A (en) * | 2001-10-31 | 2003-05-16 | Denso Corp | Vehicle occupant head detector |
WO2005024726A1 (en) * | 2003-09-02 | 2005-03-17 | Matsushita Electric Industrial Co., Ltd. | Method for detecting object traveling direction |
CN111707413A (en) * | 2020-05-15 | 2020-09-25 | 中国科学院合肥物质科学研究院 | Centroid detection method based on single-pixel detector |
-
1987
- 1987-09-14 JP JP62228421A patent/JPH0624030B2/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03175364A (en) * | 1989-12-02 | 1991-07-30 | Ezel Inc | Measuring apparatus for flow velocity |
JP2003141513A (en) * | 2001-10-31 | 2003-05-16 | Denso Corp | Vehicle occupant head detector |
WO2005024726A1 (en) * | 2003-09-02 | 2005-03-17 | Matsushita Electric Industrial Co., Ltd. | Method for detecting object traveling direction |
US7346193B2 (en) | 2003-09-02 | 2008-03-18 | Matsushita Electric Industrial Co., Ltd. | Method for detecting object traveling direction |
CN111707413A (en) * | 2020-05-15 | 2020-09-25 | 中国科学院合肥物质科学研究院 | Centroid detection method based on single-pixel detector |
Also Published As
Publication number | Publication date |
---|---|
JPH0624030B2 (en) | 1994-03-30 |
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